$161 Find Cheap Flights from Portland to Costa Rica - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Cheap Flights from Portland to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
San José
San José2 stops$397
Liberia
Liberia2 stops$391
San José
San José2 stops$397
Liberia
Liberia2 stops$391
Booking Insights

KAYAK's insights & trends for Portland to Costa Rica flights

Get data-powered insights and trends into flights from Portland to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Costa Rica?

The cheapest month for flights from Portland to Costa Rica is July, when tickets cost $178 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $2,107 and $716 respectively.

Good to know

Low season

May

Cheapest flight

$161
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly and prices are also 48% lower on average.
Flight from Portland to Liberia

FAQs - booking Costa Rica flights

  • How does KAYAK find such low prices on flights from Portland to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Portland to Costa Rica

 
Need help choosing which airline to fly with from Portland to Costa Rica? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4208 reviews
8.0Comfort
7.0Food
8.1Boarding
8.6Crew
7.5Entertainment
Airline reviews

Despite paying for an ‘upgraded’ seat in row 1, I had to put my luggage in the middle of the plane. Snacks were bleh and seat was small and uncomfortable and I am not large. Attendants were fine but not super helpful. Plane just seemed outdated.

4.0 OkayHeather, Sep 2026
Read more Southwest reviews

Despite paying for an ‘upgraded’ seat in row 1, I had to put my luggage in the middle of the plane. Snacks were bleh and seat was small and uncomfortable and I am not large. Attendants were fine but not super helpful. Plane just seemed outdated.

It was the strangest thing. The flight attendant (who was not very friendly) took our drink orders and then never brought them. I’ve never had that happen before.

Delayed for no reason at all originally. Then they said it was due to weather conditions. Communication between kayak and Southwest was terrible because both displayed different delays and departure times for HOURS throughout the day. The plane then had technical issues which delayed us from taking off even longer. Didn’t actually take off until 11:45pm when the original departure time was 7:35pm. I didn’t get home until 1:30am the next day. I was exhausted and pissed off. I am not confident if I’ll fly southwest in the future or use kayak to book.

A) Checked my luggage at the gate but never got to pre board B) if we are helping with checking our carryon and waiting 40 minutes for it we should have some privileges c) luggage took 40-45 minutes to come.. d) I asked for another snack and was told the plane is full.. seriously a small snack

I like the staff members they were super nice and helpful very sweet people :)

Unfortunately, I left my headphone's case in the bag of the front seat. I was seating on 9C. Hopefully the found it and I can get it back. I have not been able to get in contact with Southwest. Other than that, everything went fine.

Maybe different snack selection. To much sodium in them. I know refrigerators are not available but there has to be healthier items.

Wifi was terrible. I couldn't get any work done on the long flight

It's a shame that SW was previously my preferred carrier until they started imposing all these fees (luggage, seats,etc) and pulling back on other perks. I only flew with them this time due to time frame I needed to be at destination. Wasn't provided gate info during check-in, Gate info wasn't displayed at airport until last minute, gate info didn't match what SW personnel announced at fate. Kind of a mess.

Boarded the plane in Portland and sat on the tarmac for four hours before being given clearance to take off. Apparently a "scratch" was detected on the preflight inspection. This delay resulted in me missing my connection in Baltimore. I therefore had to stay overnight and then catch an early flight this morning, which resulted in my missing a mandatory class. I would like a refund / voucher to cover the cost of the missed flight. And additional voucher for the time spent on the plane in Portland would also be appreciated.

Two of the flight attendants were cranky and seemed like they didn’t want to be there. Not up to normal Delta standards. And our bags didn’t make flight to Italy from Amsterdam resulting in having to make a trip back to airport which cost me 75 euros.

The trip to Harrisburg from Detroit was extremely uncomfortable because of heat

Flights were on time, my connecting gate was VERY close to my arrival gate, everything went smooth and made for a delightful experience.

The flight was freezing cold. I had on pants and a sweatshirt, had to wrap up in the blanket provided AND put on my rain coat, and was still chilly. Have never been on such a cold plane.

The flight was delayed to board, then delay in landing and extremely bumpy landing.

Late flight, screens not working and still had to pay for a drink

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

Delta did an awful job w logistics at DTW. Missed connection. We were there an hour early. SUCKED

Delta planes have the WORST seat comfort of any plane in history. It's the opposite of ergonomic, in every sense. They also recline minimally, are covered in a vinyl and have no feet rests. Then the disembarking process is chaotic and time consuming (because of the way they load the plane and deal with luggage). Overall, somewhat frustrating but we arrived safely :)

On time. Carry on and personal bag was accommodated on the plane. Entertainment was accessible without bringing own device. Whole can of juice was provided rather than a pour.

On time. Accommodated carry on and personal bag in the plane. Good entertainment available and access without using own device. Gave a whole can of juice rather than a pour. Seat did not recline much.

Flight attendant incredibly rude. Stuck her finger in my drink and didn’t even have the courtesy to apologize.

I like the first class seat amenities like the phone charger on the armrest even though it didnt really work on mine and the partition between the seats. I also liked that there were additional places to stash things during the flight. The food I got was steak and it was really tough to cut with the knife. Chewy too. A little disappointed in that. I liked that your name is on the screen too. nice touch. great service overall.

Good, our flight was delayed but that was totally out of their control due to weather and a presidential visit.

Both my flight where delayed Had 25min to make it to my transfer flight

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

I just got back from a trip with 3 flights each way. The flights were good and we were happy with out experience. There was one steward on our first flight that was harsh and grump with passengers. It did not leave a good impression. All of the other flight crews were great on the other five flights.

They changed my flight 5 hours before it took off and changed my connecting airport messing up my entire 1st day in Japan.

I had very little time to change planes originally in Denver after my flight from Omaha. I had an hour and a half layover in Denver originally and my flight leaving Omaha was delayed an hour because they had to change a tire, which I can understand. When I reached Denver my other flight was late, fortunately, but I still had only 10 minutes to run about a mile through the airport to get to my flight. Again, fortunately, I am a healthy 71-year-old and was able to accomplish this feat. However, the stress was more than necessary to bear.

No WiFi, no power to charge phone, confusing boarding, delays

There is a considerable amount of people that use the wheel chair pre boarding along of large groups of family / friends. This is not right should be limited only to the person in need and the airline assistant. Some of these people use overhead bins that do not belong to them. The aircraft had a non functional wifi . The service was bad.

Flight was delayed 3 hours. No food on plane besides snacks

Every thing went smooth. No complaints except deplaning could have been quicker

I was grossly overcharged to change my return flight. Had to do it through Kayak because it was booked that way and I was not given the fare price listed at the time on JetBlue or kayak. Was traveling with another couple that booked directly through JetBlue and they paid the $100 change fee and the difference between what they paid originally(same as me) and the displayed fares and it was less than $400 total for two tickets. I paid almost $700 to change the same fare tickets they purchased and had to pay again for upgraded seat selection that I previously paid for on top of the almost $700 increase. Difficult to talk to the kayak representative because of his accent. Told me I had to wait for confirmation to be sure it had been changed and that I could take up to a few hours. The call itself after the wait time took almost 30 minutes, which could’ve been done directly on JetBlue in 2 to 3 minutes.. My husband and I were given separate boarding zones. They would not let us board together. I had to board in the last zone. They made me check my bag even though my husband told me that he had a spot to put my carry-on. Since he boarded before me. The flight crew tried to accommodate, but the woman that was boarding in the terminal came down and would not let me take my carry-on. She was aggressive, rude and condescending to everybody in line and told them she was being audited. When I told her that my husband had secured a spot for me to put my carry-on with his backpack, that would then move to under the seat. She told me that she couldn’t play favorites, although I was second to last to board the plane since my boarding zone was changed. They told me because I forwarded my husband his ticket that’s what separated our boarding zones, but would not allow us to board together. The volume on my TV would not work, and my upgraded seat would not go into the fully upright position so I was told repeatedly during takeoff and landing to put my chair into the upright position which was embarrassing and uncomfortable to be told assertively so many times. I will not book through kayak again.

What's not to like? Value?definitely. Every JetBlue member was extremely friendly on this flight. Very very nice new-ish aircraft,plenty of room. GOOD coffee. Entertainment,I didn't need it,but I think its available. What to do better? Well,there's nothing we can do about the other people, unbelievable how some folks are operating. Just don't allow people to lug all their stuff onto the aircraft. 1 bag. That's it. Be easier for you too. I personally would enjoy more options in schedule. One flight in and out a day is warranted given the local,I understand, but the times are inconvenient. Again, I completely understand why it is that way,It would however be great to have different options.

see my previous response about being kicked off the flight and having to fly the next day, ruining a planned vacation tour.

The flight departed more than 1 hour late. Leg room is bigger than most airlines

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

I booked this flight using JetBlue points and I was just so happy. The plane was so clean, I had every need met. Thank you!!

Our trip to Spain turned into a stressful ordeal with cockpit issues and FAA air traffic disruptions. Our American Airlines flight from Raleigh to JFK was delayed nearly four hours, causing us to miss our connections to Madrid and Jerez. We were left stranded in New York with children, even running out of diapers while trying to sort everything out. American refused to cover hotels or rental cars, leaving us to arrange and pay for them ourselves. The delays also disrupted our prepaid rental car reservations in Spain. It was a frustrating and expensive start to a family trip we had spent months planning.

Unfortunately the flight was delayed by almost 2 hours, so I missed an appointment arriving into DFW

Normally, I fly Delta first then Southwest second. I would never voluntarily fly American ever again. The seat space on this particular flight for me was incredibly cramped and small and tight. Fly crew not the most pleasant I’ve ever come across, and the normal delays of ground cruise and weather I know you will totally can’t control. Still would not fly American voluntarily again.

Might want to rethink the snacks you offer in first class they were pretty pathetic

Both directions of our trip were befuddled by massive delays, one of which led to our connecting flight being grounded mid air due to storms that we’d have missed if we were on time. The other our originating flight was delayed repeatedly until it arrived at our connecting airport later than our final leg was even supposed to have arrived. American cannot seem to manage rebooking s for a family party… both directions we had to come up with a plan to get to Boston stay overnight only one night each direction was covered by the airline -and take a bus to or from our destination. Missed an entire leg of our trip, hotel cancellation fees, expensive stay in Boston and bus ticket expenses are unlikely to be comped and the meal vouchers are worthless.

My flight was 4 hours delayed on departure at 6a causing me to miss my connection at DCA. I had to scramble to find a seat home on a later flight and instead of an exit seat, I was in row 30 on a flight getting me home 5 hours later than planned. The AA team on the ground did a fine job. AA continues to run the airline like the passengers are cargo.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

A much better flight than our previous. The flight attendant took care of us and regularly checked in to see if we needed anything. Brought us drinks prior to the departure and then a couple more times. Totally makes the difference in how you travel when the crew is checking on their passengers. Great job on this leg of our trip.

Flight was delayed after boarding and no idea when it would take off. Crew in Portland did arrange for transport to Boston for a different set of flights to my destination.

Seats are so close together. Middle seats should be discounted.

More options for your flight from Portland to Costa Rica

Complete your trip to Costa Rica with a hotel stay or car rental